Ride1Rob,
There's the possibility that you might be trying to download fake files. There are heaps around lately. They'll sit 'connecting' for ages & then go straight to 'need more sources'. Typically, these are newer releases/very popular (but not always) with lots of sources (up to 100 sometimes). Try searching again, varying your search terms & using the All Types search. Stay away from files with huge numbers of sources, go for a file with 10 sources or less.
Look up video files before download with Bitzi (click on link)
How to use Bitzi
(files with lots of sources but no Bitzi rating are usually fakes)

If this doesn't sound like your problem, then it's probably an ISP issue as UK Bob said.